P0990 2017 Chevrolet Silverado Code - Transmission Fluid Pressure Switch 5 Circuit High Voltage
Quick Answer
The Transmission Fluid Pressure (TFP) switch 5 is part of the Transmission Control Solenoid Valve Assembly, which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve Assembly. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0990 2017 Chevrolet Silverado indicates Transmission Fluid Pressure Switch 5 Circuit High Voltage.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve Assembly.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0990 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0990 2017 Chevrolet Silverado?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Transmission Control Solenoid Valve Assembly
- Transmission Control Solenoid Valve Assembly harness is open or shorted
- Transmission Control Solenoid Valve Assembly circuit poor electrical connection
How to Fix the DTC P0990 2017 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0990 2017 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0990 2017 Chevrolet Silverado code?
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Frequently Asked Questions about P0990 2017 Chevrolet Silverado Code
What does the OBD-II code P0990 mean for a 2017 Chevrolet Silverado?
The P0990 code indicates a high voltage issue in the Transmission Fluid Pressure Switch 5 circuit, which helps monitor and regulate transmission fluid pressure.
What are the symptoms of the P0990 code in a 2017 Chevrolet Silverado?
Common symptoms include erratic shifting, transmission slipping, reduced fuel efficiency, and the check engine light turning on.
What causes the P0990 code in a 2017 Chevrolet Silverado?
Possible causes include a faulty transmission fluid pressure switch, damaged wiring or connectors in the circuit, low transmission fluid, or issues with the transmission control module (TCM).
Can driving with the P0990 code damage my 2017 Chevrolet Silverado?
Yes, driving with this code can lead to transmission damage or unsafe driving conditions due to improper gear shifting.
How is the P0990 code diagnosed on a 2017 Chevrolet Silverado?
A mechanic will use a diagnostic scanner to read the code, inspect the transmission fluid pressure switch, check the wiring and connectors, and test the TCM for faults.
What repairs can fix the P0990 code in a 2017 Chevrolet Silverado?
Repairs may include replacing the transmission fluid pressure switch, repairing or replacing damaged wiring, adding or replacing transmission fluid, or reprogramming/replacing the TCM.
How much does it cost to fix the P0990 code on a 2017 Chevrolet Silverado?
Repair costs can vary but typically range from $150 to $400, depending on the exact issue and labor rates in your area.
Can low transmission fluid cause the P0990 code in a 2017 Chevrolet Silverado?
Yes, low transmission fluid can lead to improper pressure readings, resulting in the P0990 code.
How do I prevent the P0990 code from appearing on my 2017 Chevrolet Silverado?
Regular maintenance, such as checking transmission fluid levels and inspecting wiring, can help prevent this code from appearing.
Is the P0990 code related to other transmission codes on a 2017 Chevrolet Silverado?
Yes, it may be related to other transmission pressure switch or circuit codes, as they often share components and systems.
Discuss the causes and fixes for P0990 2017 Chevrolet Silverado OBDII Code
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